* 🔧 Bump Rust version of the devenv image to 1.99
* 🔧 Run the pinned Rust setup from the lint and format scripts
./build and ./test switch to the Rust version in render-wasm/_build_env
through setup, but ./lint did not, and formatting called cargo fmt
directly. In CI both ran on the devenv image's default toolchain.
Make ./lint run setup and add a ./fmt script that does the same, so all
render-wasm entry points use the pinned version. CI and scripts/ci now
call ./fmt instead of cargo fmt.
AI-assisted-by: claude-opus-5-5
Rust 1.91 links emscripten with JS exception handling, which cannot
mix with SUPPORT_LONGJMP=wasm. Bump the devenv to Rust 1.99 (native
Wasm EH) and align EMCC_CFLAGS / SKIA_BINARIES_URL with a Skia
-ljmp-wasm prebuild so +simd128 no longer hits invoke_*V TypeErrors.
* ✨ Add headless wasm render backend to the exporter
* ♻️ Move render-wasm bridge to common and split wasm builds
* 🔧 Upload builtin font variants in the wasm exporter
* ♻️ Move shared font and resources utils out of render_wasm
* ⚡ Fetch only the exported roots in the wasm exporter
* ⚡ Bound save_layer rects in the vector export path
